I'd start with Learning Perl, then get the Perl Cookbook (& possibly Programming Perl) if you really want physical books. Make sure you get the latest editions though ...
However, there is a lot of free stuff on the net:
http://perldoc.perl.org/ - the whole Perl lang ref with examples in the ref and links to tutorials
http://www.tizag.com/perlT/index.php
http://www.perlmonks.org/?node=Tutorials
There's also the Perl CD Bookshelf; pkg of CD/DVDs with 6 books on them.
Manuales
